Intralaminar thalamic nuclei
(Redirected from Intralaminar nuclei)
Group of nuclei in the thalamus
| Latin | nuclei intralaminares thalami |
|---|---|
| Part of | Thalamus |
| System | Central nervous system |
The intralaminar thalamic nuclei are a collection of nuclei located within the thalamus, a part of the diencephalon in the brain. These nuclei are situated within the internal medullary lamina, a sheet of white matter that divides the thalamus into its various components. The intralaminar nuclei play a crucial role in the modulation of consciousness, arousal, and pain perception.
Anatomy[edit | edit source]
The intralaminar thalamic nuclei are divided into several distinct nuclei, including:
These nuclei are interconnected with various regions of the cerebral cortex, basal ganglia, and other thalamic nuclei, facilitating their role in integrating and relaying information.
Function[edit | edit source]
The primary functions of the intralaminar thalamic nuclei include:
- Modulation of consciousness and arousal: These nuclei are involved in maintaining alertness and wakefulness by projecting to the cerebral cortex and reticular activating system.
- Pain perception: The intralaminar nuclei receive nociceptive (pain-related) information and are involved in the processing and perception of pain.
- Motor control: Through connections with the basal ganglia, these nuclei play a role in the regulation of motor functions.
Clinical Significance[edit | edit source]
Damage or dysfunction of the intralaminar thalamic nuclei can result in various neurological conditions, including:
- Thalamic pain syndrome: A condition characterized by chronic pain following a thalamic stroke.
- Coma: Lesions in these nuclei can lead to a loss of consciousness.
- Movement disorders: Disruption of the connections between the intralaminar nuclei and the basal ganglia can result in motor control issues.
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